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nixpkgs/nixos/tests/hadoop/hdfs.nix

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Nix

import ../make-test.nix ({...}: {
nodes = {
namenode = {pkgs, ...}: {
services.hadoop = {
package = pkgs.hadoop_3_1;
hdfs.namenode.enabled = true;
coreSite = {
"fs.defaultFS" = "hdfs://namenode:8020";
};
hdfsSite = {
"dfs.replication" = 1;
"dfs.namenode.rpc-bind-host" = "0.0.0.0";
"dfs.namenode.http-bind-host" = "0.0.0.0";
};
};
networking.firewall.allowedTCPPorts = [
9870 # namenode.http-address
8020 # namenode.rpc-address
];
};
datanode = {pkgs, ...}: {
services.hadoop = {
package = pkgs.hadoop_3_1;
hdfs.datanode.enabled = true;
coreSite = {
"fs.defaultFS" = "hdfs://namenode:8020";
};
};
networking.firewall.allowedTCPPorts = [
9864 # datanode.http.address
9866 # datanode.address
9867 # datanode.ipc.address
];
};
};
testScript = ''
startAll
$namenode->waitForUnit("hdfs-namenode");
$namenode->waitForUnit("network.target");
$namenode->waitForOpenPort(8020);
$namenode->waitForOpenPort(9870);
$datanode->waitForUnit("hdfs-datanode");
$datanode->waitForUnit("network.target");
$datanode->waitForOpenPort(9864);
$datanode->waitForOpenPort(9866);
$datanode->waitForOpenPort(9867);
$namenode->succeed("curl http://namenode:9870");
$datanode->succeed("curl http://datanode:9864");
'';
})